Fix packaging (#87)

* Ensure that all files are packaged or excluded

* Add a test to ensure our packaging stays correct

.travis.yml

@@ -30,6 +30,7 @@ matrix:
       env: TOXENV=pypy CC=clang
     - python: 2.7
       env: TOXENV=pep8
+    - env: TOXENV=packaging
     - python: 3.5
       env: TOXENV=py3pep8
     - language: generic

MANIFEST.in

@@ -1,3 +1,11 @@
 include LICENSE README.rst
+
+include tox.ini .coveragerc
 include src/build_bcrypt.py
+
 recursive-include src/_csrc *
+recursive-include tests *.py
+
+exclude requirements.txt tasks.py .travis.yml
+
+prune .travis

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,pypy,py33,py34,py35,pep8,py3pep8
+envlist = py26,py27,pypy,py33,py34,py35,pep8,py3pep8,packaging
 
 [testenv]
 # If you add a new dep here you probably need to add it in setup.py as well
@@ -27,6 +27,15 @@ deps =
 commands =
     flake8 .
 
+[testenv:packaging]
+deps =
+    check-manifest
+    readme_renderer
+commands =
+    check-manifest
+    python setup.py check --metadata --restructuredtext --strict
+
+
 [flake8]
 exclude = .tox,*.egg
 select = E,W,F,N,I